Some first changes
Some renaming
Some renaming
Merge branch 'master' into develop

* master:
  Create README.md
Initialize run one to rename some Databases after extension update
runonce.php build
Renamed some dca-files
Renamed all language files
cleaned up the htaccess files
Rename and prepare dca files for Contao 3 up
Optimized runonce.php
Prepared runonce.php for contao 3.2
Change the correct spelling "downloadarchive"
Added runonce to update database when updating the extension
Porting module and element to Contao >= 3.3
Updated language files
Removed support for older contao versions.
Added composer.json